Results 51 to 60 of about 7,436,694 (204)

Digitized tongue pictures' Fractal

, 2018
Fractal spectrums ƒ(α)-α of randomized fractal pictures were obtained, in which 8 parameters were used as characteristic quantities. αmin: The minimum value of singular exponent α; αmax: The maximum value of singular exponent α; ƒmin: Value of multiple ...
Ji zhang (5181551)
core   +1 more source

A Study of the Fractal Bending Behavior of Timoshenko Beams Using a Fourth-Order Single Equation

Buildings
In this paper a new generalized fractal equation for studying the behaviour of self-similar beams using the Timoshenko beam theory is introduced. This equation is established in fractal dimensions by applying the concept of fractal continuum calculus Fα ...
Alexandro Alcántara, Claudia del C. Gutiérrez-Torres, José Alfredo Jiménez-Bernal, Juan Gabriel Barbosa-Saldaña, Juan B. Pascual-Francisco, Didier Samayoa   +5 more
doaj   +1 more source

Arithmetic-Analytic Representation of Peano Curve

International Journal of Mathematics and Mathematical Sciences, 2019
In this work, we obtained a nonmatrix analytic expression for the generator of the Peano curve. Applying the iteration method of fractal, we established a simple arithmetic-analytic representation of the Peano curve as a function of ternary numbers.
Guangjun Yang, Xiaoling Yang, Ping Wang
doaj   +1 more source

Tuning Colloidal Stability and Photothermal Conversion Efficiency of Graphite Nanofluids via Anionic‐Nonionic Surfactant Engineering

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Graphite nanofluids were stabilized using a mixed SDS/Tween 80 surfactant system. The optimized formulation exhibited enhanced colloidal stability, red‐shifted UV–Vis absorption, and improved photothermal conversion under solar irradiation. Achieving stable dispersion of graphite flakes (GFs) in aqueous media remains a critical challenge in developing ...
Ahmad Chehade, Shoaib Anwer, Md Islam, Eiyad Abu‐Nada   +3 more
wiley   +1 more source

Liquid‐Mediated Kinetically Controlled Synthesis of Porous Carbon with Homogeneous Graphitic Networks for High‐Rate and High‐Loading Organic Supercapacitor

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Liquid‐mediated kinetic control reconstructs a “rigid–flexible” carbon precursor into homogeneously graphitized porous carbon. The resulting porous structure and homogeneous graphitic network accelerate ion/electron transport, enabling superior performance in high‐rate and high‐loading organic supercapacitors.
Boran Zhang, Wengang Shi, Lijie Wang, Dongyang Wu, Hua Wang, Hongfei Zhu, Yang Hu, Guangbo Zhao, Fei Sun   +8 more
wiley   +1 more source

An algorithm for seizure detection in rodents

Epilepsia Open, EarlyView.
Abstract Objective Epilepsy animal research often relies on long‐term intracranial electroencephalographic (iEEG) recordings. Here, we describe an artificial neural network (ANN) algorithm for automatic detection of seizures. Methods The algorithm was trained on iEEG recordings of three mouse models of chronic epilepsy: (1) the pilocarpine model of ...
Lyna Kamintsky, Gerben van Hameren, Itai Weissberg, Pooyan Moradi, Ofer Prager, Alaa Abu Ahmad, Lior Schori, Albert Becker, Yaniv Zigel, Alon Friedman   +9 more
wiley   +1 more source

Donor‐acceptor fractal synergy: Decoding self‐similarity for stable organic photovoltaics

FlexMat, EarlyView.
Morphological congruence between donor and acceptor refines the fractal structure of bulk heterojunction films and enhances their self‐similarity. This optimized multiscale morphology preserves charge‐transport pathways against external disturbances, suppresses structural degradation, and improves the operational stability of organic solar cells while ...
Runzheng Gu, Zhongwei Ge, Yiyun Li, Fengzhe Cui, Zhen Fu, Mingxu Zhou, Dongcheng Jiang, Jiangkai Sun, Jianqiang Liu, Kangning Zhang, Feng Chen, Hang Yin, Yanming Sun, Xiaotao Hao   +13 more
wiley   +1 more source

Conformable Derivative and Fractal Derivative of Functions on the Interval [0,1] [PDF]

, 2019
Recently, a calculus-based fractal, called Fα-calculus, has been developed which involve Fα-integral, conjugate to the Riemann integral, and Fα-derivative, conjugate to ordinary derivative, of orders α, 0< α <1, where α is the dimension of F ...
Jafari, Fakhri, Mardanbeigi, Mohammed-Reza, Pishkoo, Amir   +2 more
core  

Fractal analysis of topography and reflectance surfaces

, 1998
The definition of a fractal has been successfully deduced from constructing the Koch curve and the Cantor set. Principles of seven methods (the ruler, box-counting, spectral structure function, intersection methods, cube-counting, and triangular prism ...
Jiang, Xinxia
core   +1 more source

State‐Dependent Market (In)Efficiency in Cryptocurrency Markets

Journal of Futures Markets, EarlyView.
ABSTRACT This paper develops a meta‐learning framework to test whether cryptocurrency market inefficiency is static or state‐dependent. To resolve competing claims between the Efficient and Adaptive Market Hypotheses (AMH), we construct an adaptive trading strategy using high‐frequency data for 50 major cryptocurrencies.
Sasan Barak, Siavash Razmi, Alireza Mousavi   +2 more
wiley   +1 more source